RT Conference Proceedings
T1 Output-only identification of rigid body motions of floating structures: a case study: 												A case study
A1 Ruzzo, C.
A1 Failla, G.
A1 Collu, M.
A1 Nava, V.
A1 Fiamma, V.
A1 Arena, F.
AB In order to identify rigid body motions of floating offshore structures, output-only techniques are very useful for developing low-cost intermediate-scale experimental activities directly into the sea, instead of wave tanks. A crucial parameter, however, is the length of the response records used as input for the identification process, since short records may result in significant loss of accuracy, while long ones may be incompatible with the assumption of stationarity of the sea state. This work presents a sensitivity study conducted on a numerical model of a spar structure, identified by means of Enhanced Frequency Domain Decomposition method. An overview on the efficiency of the method is given for various lengths of response record, along with practical indications on the minimum values acceptable.
SN 1877-7058
YR 2017
FD 2017
LA eng
NO Ruzzo , C , Failla , G , Collu , M , Nava , V , Fiamma , V & Arena , F 2017 , ' Output-only identification of rigid body motions of floating structures: a case study : A case study ' , Procedia Engineering , vol. 199 , pp. 930-935 . https://doi.org/10.1016/j.proeng.2017.09.243
NO Publisher Copyright: © 2017 The Authors. Published by Elsevier Ltd.
DS TECNALIA Publications
RD 23 jul 2024